Overview
The Annovi Reverberi AR51480 VS310 Safety Valve Regulator is a dual-function pressure
management component engineered to protect high-pressure washer systems from pressure-related
damage while maintaining consistent, controlled cleaning performance. Designed specifically
for professional, commercial, and industrial pressure washing applications, the VS310 combines
pressure regulation and automatic safety relief into a single compact brass valve.
Unlike conventional pressure regulators that only control outlet pressure, the VS310 actively
monitors system pressure and instantly vents excess pressure when unsafe conditions occur.
This integrated approach significantly reduces system complexity, eliminates the need for
separate safety valves, and minimizes plumbing points that could otherwise become failure risks.
For contractors, facility managers, and OEM builders, the result is a cleaner installation,
improved reliability, and enhanced operator safety.
The compact footprint of the AR51480 makes it especially valuable in tight equipment cabinets,
skid-mounted systems, and mobile pressure washer rigs where space is limited but safety cannot
be compromised. Whether installed in a new build or retrofitted into an existing system, the
VS310 delivers dependable pressure control and built-in protection in one rugged component.
Pressure Control & Safety Functions
- Dual-function design combines pressure regulation and automatic safety relief in a single valve body.
- Maintains stable operating pressure during continuous use for consistent spray performance.
- Instantly vents excess pressure to atmosphere when system PSI exceeds safe operating limits.
- Protects pumps, hoses, spray guns, fittings, and seals from sudden pressure spikes.
- Ideal for systems with frequent cycling, trigger variation, or multiple operators.
In real-world operation, pressure washer systems often experience rapid changes in flow and
pressure due to trigger release, nozzle changes, or operator error. Without proper safety
relief, these fluctuations can lead to hose failures, pump seal damage, or catastrophic
component blowouts. The VS310 is designed to respond immediately to these conditions, relieving
pressure before damage occurs while maintaining stable pressure during normal operation.
Construction & Reliability
- Heavy-duty brass housing provides strength, corrosion resistance, and long service life.
- Precision internal components engineered for high-pressure commercial environments.
- Compact, single-body construction reduces leak points and simplifies plumbing layouts.
- Designed for daily professional use with minimal maintenance requirements.
The brass construction of the AR51480 VS310 offers excellent resistance to corrosion, heat, and
mechanical stress. This makes it well suited for demanding environments such as industrial wash
bays, municipal facilities, and contractor rigs that operate outdoors or under harsh conditions.
By integrating both regulation and safety relief into one housing, the VS310 reduces the number
of fittings, adapters, and threaded connections—each of which represents a potential failure
or leak point in high-pressure systems.
From a reliability standpoint, fewer components mean fewer problems. The VS310’s streamlined
design supports long-term operation with only periodic inspection, making it an efficient and
cost-effective solution for systems that must remain operational with minimal downtime.
Key Features & Technical Highlights
- Model: AR51480 – VS310
- Type: Combination safety valve and pressure regulator
- Material: Brass body with corrosion-resistant internal components
- Primary Functions:
- Regulates system pressure to maintain optimal flow and cleaning efficiency.
- Automatically releases excess pressure to protect the pump and hydraulic circuit.
- Design: Compact, space-saving configuration for tight installations.
- Serviceability: Easy installation, adjustment, and maintenance using standard tools.
This combination of features makes the VS310 particularly attractive to OEMs and system
integrators who want to simplify builds without sacrificing safety or performance. By reducing
the number of individual components required, the AR51480 helps streamline system layouts and
improve long-term reliability.
Typical Applications
- Industrial wash bays in manufacturing plants, food processing facilities, and transport depots.
- Commercial pressure washers including trailer-mounted and stationary contractor systems.
- Facility maintenance equipment used in warehouses, municipal buildings, and parking structures.
- Mobile power-washing rigs where compact, dependable pressure control is essential.
In these applications, pressure washer systems are often operated by multiple users and subjected
to varying loads throughout the day. The VS310 helps standardize system behavior, ensuring that
pressure remains within safe limits regardless of operator technique or duty cycle.
Benefits for Operators & Integrators
- Simplified system design with one valve handling both regulation and safety relief.
- Improved operator safety by preventing overpressure-related failures.
- Reduced maintenance costs due to fewer fittings and leak points.
- Compact footprint ideal for confined equipment spaces and mobile trailers.
- Consistent cleaning results from stable, repeatable pressure output.
For system integrators, the VS310 reduces installation time and complexity. For operators, it
delivers peace of mind knowing that their equipment is protected against unexpected pressure
events. This dual benefit makes the AR51480 a smart investment for professional-grade systems
where uptime, safety, and performance are critical.
Bottom Line
- The AR51480 VS310 Safety Valve Regulator is more than a standard pressure control
device—it is a built-in safety assurance system for your pump, equipment, and personnel.
By combining precise pressure regulation with automatic overpressure relief in a rugged
brass body, it delivers the reliability, efficiency, and protection demanded by modern
commercial and industrial pressure washing operations.





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